The secret of life is to find out what one really wants. - John Buchan

But the big courage is the cold-blooded kind, the kind that never lets go even when you're feeling empty inside, and your blood's thin, and there's no kind of fun or profit to be had, and the trouble's not over in an hour or two but lasts for months and years.

If the Kirk confines human nature too strictly, it will break out in secret ways, for men and women are born into a terrestrial world, though they have hopes of Heaven.

In a tangle of duties a man must seize the solitary clear one...

Buchan, John. Salute to Adventurers (p. 172). Kindle Edition.